New build: Optimum D280x700 with AcornSix ClosedLoop

[suntravel]

The encoder on my mill is also belt driven with a very small timing belt.

Uwe

[Spartan117]

The encoder only had about 30cm/1ft of cable on it. I checked, if i can replace it completely, but there has been used a somewhat special connector, inside, so i had to splice the cable... How i hate splicing shielded cable But since i know that the encoder-cable is prone to receive a lot of electrical noise because of the length and running outside the cabinet and near the motor, i chose to go that way.

Unspectacular pic, but approximately 1h of fiddling



Not a real beauty, but 0,1Ohms at ~6m/20ft on the shield, seems to be fine.


I could finish the spindle-encoder completely today, spindle is running super smooth since my little overhauling, also the encoder runs without any wobble or vibration (the torque-arm is a piece of 0,2mm/0.007874" feeler gauge, btw).
So i am very happy

[Spartan117]

Ref-Z is mounted, too. First moves are made
Spindle turning, axes moving, reference-switches functional, could be fun at the weekend^^



I used 2K-EP-glue (3M DP490, to be exact) to fill the uneven underground for the reference-sensor. It can be applied to vertical surfaces without draining off or even moving at all... I clamped the sensor-holder to a spacer for curing, works like a charme.
Later, I made a very sharp corner at the "actuator" here, too, to improve accuracy of the sensor (just face-milled the small face of the rear-clamping-strip)
Maybe i won't need that, because i can also use the home-marks of the scales, but we will see

Besides that, i only updated my wiring-scheme (that eats hours, too...). But you better do that, while you still know what you have done there^^